Junos
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Junos

[REQ] qfx5100-48s-6q - parity error.

‎04-02-2019 06:09 PM

Hi, ALL!

 

I found that some logs about parity error.

Does this log affect services? or Is the log automatically resolved?

 

Apr 3 05:04:17.557 qfx5100-48s-6q fpc0 _soc_mem_array_sbusdma_read: FP_TCAM.ipipe0 failed(ERR)
Apr 3 05:04:17.557 qfx5100-48s-6q fpc0 Received sbus ack has wrong opcode.
Apr 3 05:04:17.632 qfx5100-48s-6q fpc0 SER Parity Check Error.
Apr 3 05:04:17.636 qfx5100-48s-6q fpc0 SER Parity Check Error.
Apr 3 05:04:17.640 qfx5100-48s-6q fpc0 Unit 0: FP_TCAM entry 1864 TCAM parity error
Apr 3 05:04:17.641 qfx5100-48s-6q fpc0 Unit 0: mem: 1215=FP_TCAM blkoffset:10
Apr 3 05:04:17.642 qfx5100-48s-6q fpc0 Unit 0: CLEAR_RESTORE: FP_TCAM[1215] blk: ipipe0 index: 1864 : [0][0]
Apr 3 05:04:17.642 qfx5100-48s-6q fpc0 Unit 0: SER parity failure without valid error !!
Apr 3 05:06:27.866 qfx5100-48s-6q fpc0 _soc_mem_array_sbusdma_read: FP_TCAM.ipipe0 failed(ERR)
Apr 3 05:06:27.867 qfx5100-48s-6q fpc0 Received sbus ack has wrong opcode.
Apr 3 05:06:27.868 qfx5100-48s-6q fpc0 SER Parity Check Error.
Apr 3 05:06:27.868 qfx5100-48s-6q fpc0 Unit 0: FP_TCAM entry 1865 TCAM parity error
Apr 3 05:06:27.869 qfx5100-48s-6q fpc0 Unit 0: mem: 1215=FP_TCAM blkoffset:10
Apr 3 05:06:27.869 qfx5100-48s-6q fpc0 Unit 0: CLEAR_RESTORE: FP_TCAM[1215] blk: ipipe0 index: 1865 : [0][0]

 

I want you guys to me explain in detail! 

Thanks in Advance, 😄

 

3 REPLIES 3
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Junos

Re: [REQ] qfx5100-48s-6q - parity error.

‎04-02-2019 08:08 PM

These were actual parity errors detected by SER logic, and also have been cleared.

CLEAR_RESTORE message indicates that, the corresponding entries at those indexes (where the parity is reported) are cleared.

If you see CLEAR_RESTORE or CACHE_RESTORE message after parity error message, then they indicate that parity was detected and cleared or corrected. CLEAR_RESTORE: Entry that reported the parity error is cleared by SER logic CACHE_RESTORE: Entry that reported the parity error is restored from the Cache. So this messages are expected and are informal that error was corrected by system.

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Junos

Re: [REQ] qfx5100-48s-6q - parity error.

‎04-02-2019 08:23 PM

Hi!! 🙂

 

Thanks for your reply,

However, I want to know that What SER logic is.

I want to know SER logic in detail.

such as, SER logic's role and fuction, etc..

 

Thanks in Advance, 😄 😄

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Junos

Re: [REQ] qfx5100-48s-6q - parity error.

‎04-03-2019 01:50 AM

Hi,

 

SER stands for Software Error Recovery. This is functionality, which automates the recovery of soft memory parity errors. E.g. this is a resilency feature.

 

Regards,

Roman

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